Create makefile.yml

.github/workflows/makefile.yml

@@ -0,0 +1,22 @@
+name: Makefile CI
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  Lexic:
+    name: Lexic Tests
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Compile the tests
+      run: |
+        cd Lexic/test/_build/
+        make
+        
+    - name: Run tests
+      run: ./test_all